261909-84-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 261909-84-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,1,9,0 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 261909-84:
(8*2)+(7*6)+(6*1)+(5*9)+(4*0)+(3*9)+(2*8)+(1*4)=156
156 % 10 = 6
So 261909-84-6 is a valid CAS Registry Number.